Heating-burner for liquid fuel.



VK. KALT-SCHMID. HEATING EUEIIEE 'EOE LIQUID EUEL. y APPLIoATIoN EILEE'Nov.-4, 1907. 906,237, Patented Dec. 8, 1908.

W/TNESSE nular chamber.

KARL KALTSGHMID, OF OBERRIEXINGEN, GERMANY.

HEATING-BURNER FOR LIQUID FUEL.

Specification of Letters Patent.

Patented Dec. 8, 1908.

Application filed November 4, 1907. Serial No. 400,579.

To all whom it may concern:

Be it known that I, KARL KALTscHMrD, a subject of the King of Wrtemberg, and resident of Oberriexingen-an-der-Enz, in the Kingdom of Wrtemberg, German Empire, have invented new and useful Improvements in Heating-Burners for Liquid Fuel, of which the following is a full, clear, and exact speciication.

Bunsen burners for heating which have a round burner head and a straight vaporizer or gasifler extending through the burner head, a construction which is known to combine a satisfactory form of flame with easy access to the interior of the vaporizer, present difliculties in the transference of heat from the flame to the vaporizer.

The present invention relates to a burner of this kind which is similar to the known burners insofar that for transferring the heat a conductor is used which is exposed to the flame and is connected as intimately as possible with the vaporizer but is quite independent of the burner head; in this manner auxiliary flames are obviated and dissipation of heat in the burner by conduction may be avoided.

According to the invention, the heat conductor is so constructed that in spite of its considerable mass, necessary for conducting the heat, and its intimate contact with the fiame on the one hand and with the vaporizer on the other, it leaves the space above the burner head completely free and there is no obstacle to the applications of the burner for heating.

In the accompanying drawings Figure l is a longitudinal vertical section and Fig. 2 a transverse section of the burner.

A liquid fuel reservoir a is connected in suitable manner by a ipe with the vaporizer l). The latter is a tube passing through the burner head c which has the form of an an- The vaporizer and the duct leading to it may be wholly or partly filled with any suitable material. Fixed to the vaporizer l) is a bar d of good heat conducting metal carryin a plate e of like metal, advantageously pe orated and in the form of a disk. This plate is in connection with the rest' of the burner only through the bar d and is not in direct contact with the annular burner chamber c. rlhe latter has two rings of flame-openings, an outer one f and an in- 11er one g.

The burner operates as follows: Spirit, for instance, flows from the reservoir a through the duct into the vaporizer t, which in starting the burner is preheated by some accessory source of heat. T he spirit is vaporized and the vapor passes preferably through a controlling valve h, to a nozzle i where it is injected under a certain pressure into the burner tube 7c, drawing in air with it through the perforations l. rl"he mixture of spirit vapor and air enters the annular chamber c and issues through the orifices f g at which it burns. The iiames from the inner flameopeninos or orifices g play upon the perforated pzlate e, heating it, but for the rest imparting their heat to the vessel to be heated which is supported at a suitable distance above the burner head. The flames from the outer orifices f heat the vessel directly. The strongly heated plate e imparts by conduction to the vaporizer through bar d suflicient heat to maintain the vaporizer at the requisite temperature.

lAnother advantage of the invention is that the amount of good conducting metal required, in practice copper, is reduced to a minimum, which in view of the cost of such metal is commercially important.

What I claim is:

l. In heating burners for liquid fuel, the combination of an annular burner-head closed at the top, a straight vaporizer extending through said burner-head,a late of good conducting metal situated within but not in contact with said burner-head,

and means connecting said plate with the vaporizer.

2. In heating burners for `liquid fuel, the combination of an annular burner-head closed at the top and having inwardly facing flame-openmgs, a straight vaporizer extending through said burner-head, a plate of good conducting metal situated within but not in contact with said burner-head, and a bar connecting said plate with the vaporizer.

3. In heating burners for liquid fuel, the combination of an annular'burner-head having inwardly and outwardly facing iiameolpenings, La straight vaporizer extending t rough said burner-head, a erforated plate of good conducting meta situated within but not in contact with said burnerhead, and a bar connecting said plate with the vaporizer.

4. In a vapor-burner, the combination of an annular burner-head closed at the top and having a eylindrieal inner Wall provided with 'flame-openings, a straight vaporizing tube extending throuo'h said burnerhead, and a heating plate lIocated'vvithin but out of Contact and-direct Connection with the burner-head and mounted on said vaporizing tube.

5. In a vapor-burner, the combination of an annular burner-head having a series of inwardly-facing flame-Openings, a Vaporizing tube extending through said burnerhead, and a plate mounted on said tube Within said burner-head in the path of the jets issuing from said Haine-openings.

6. In a vapor-burner, the combination of an annular burner-head havinga series ol inwardly-'facing Haine-openings, a vaporizing tube7V a bar mounted on said tube and located in the opening of said burner-head, and a heating plate for said tube sup orted solely on and solely in Contact Wit said bar and heated by the jets from said flameopenings.

7. In a vapor-burner7 the combination of an annular burner-head having series of inner and outer flame-openings, a va orizing tube, and a plate mounted on sai tube and disposed Within the opening of the burner-head, being heated by the jets from the inner flame-openings.

` 8. InV a va}; or-burner7 the combination of a burner-head having a series of inwardly- Jfacing ilanie-openings, a va orizing tube, and a heating plate supporte( on said va orizing tube Within the burner-head and ac jacent said flame-openings.

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two subscribing Witnesses.

KARL KALTSCHMID.

Witnesses z ERNEST ENTENMANN, OTTO RUDOLPH. 

